DNA Marker Index information for Chromosome: M Marker: B4a1a1o'Names and Aliases for this DNA Marker: B4a1a1o', B4a1a1-T152C!, B4a1a1-b.Chromosome Position in hg38 Human Genome assembly1: 152.Chromosome Position in hg19 assembly2: 152 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: C.